Time damper-regulator.



m. 681,97I. Patented Sept. 3, l90l; n. A. PENBOSE.

TIME DAMPER REGULATOR.

, Applicat ion filed Nov. 20, 1960.)

(No Model.)

WITNESSES INVEN 0R fl mfimw d ned 1 UNITED STATES PATENT FFICE.

RICHARD A. PENROSE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OFONF-TENTII TO DANIEL LOONEY, OF SAME PLACE.

TIME DAM PER-REGULATOR.

SPECIFICATION formingpart of Letters Patent No. 681,971, dated September3, 1901.

Application filed November 20, 1900. $erial No. 37,103. (No model.)

To aZZ whom it may concern.-

Be it known that I, RICHARD A. PENROSE, a citizen of the United States,and a resident of Philadelphia, county of Philadelphia, and State ofPennsylvania, have invented certain new and usefullmprovements inStove-Damper Regulators, of which the following is a specification,reference being had to the accompanying drawings,forming a part thereof,in which similar characters of reference indicate corresponding parts.

This invention relates to an improved stovedamper regulator, the objectthereof being to supply an efficient means for automatically closing thedamper Within a predetermined period of time.

The device is simple in construction, durable and inexpensive, and it isadaptable for use in connection with any style of stovedamper.

The invention will be hereinafter fully described, and specifically setforth in the annexed claims.

In the accompanying drawings, forming part of this specification, Figure1 is a longitudinal elevation of my improved damperregulator, showing apart thereof in sectional elevation; and Fig. 2 is a plan view.

In the practice of my invention I employ, primarily a receptacle A,which embodies the two hoppers a and a, which communicate with eachother at their discharge or outlet ends, whereby they may alternatelycontain sand, as will be hereinafter described. Extended from the hoppera is a compartment a and within this said compartment is a plate B,which is balanced by means of a le ver C, whereby it can move verticallywithin the said compartment a The lever O is fulcrumed at c by means ofthe lugs c, and it is connected at its inner end to the plate B by meansof the short arm 0 thus allowing the said plate B to move freely withinthe compartment a The receptacle A is pivotally mounted upon abracket 1,which may be secured to the wall adjacent to the stove-damper, as 2. Asa means for turning the receptacle A, whereby its two hoppers may bealternately inverted, I employ a pinion D, which is secured to thereceptacle A, and a rack e, forming part of a sliding rod E, which moveshorizontally within a box or bearing F, connected to the bracket 1. Thisrod 'E is maintained in its normal position, as shown by full lines inthe drawings, by means of a spiral spring G, which connects with an eye9 on the bracket 1, and movement of said rod in the direction of thearrow 3, Fig. 1, of the drawings is limited by means of the stop 6,whereby the receptacle A is normally main- 6o tained in an uprightposition. Formed on the upper surface of the rod E is a tooth 6 whichengages a pawl H, when the rod is moved into position illustrated bydotted lines of the drawings, whereby the receptacle A can be maintainedin an inverted position, which is also illustrated by dotted lines.Depending from the pawl H is an arm h, adapted to engage the free end ofthe lever 0, whereby said lever may move the pawl H out of contact withthe tooth 6 as will be hereinafter described. The rod E is provided witha handle for moving it, and it is connected with the crankj of a damperJ by means of the short arm 6 In the drawings I have illustrated myinvention in connection with the revoluble damper of a Stovepipe; but itis obvious that it may be used in connection with a sliding or any otherstyle of stove-damper.

In the operation and use of the invention the receptacle A is suppliedwith sand 4 of a sufficient quantity to approximately fill the hopper a,and said sand is normally contained within said hopper when the deviceis 85 in position illustrated by full lines in the drawings, the damperbeing closed. When it is desired to open the damper, the rod E is movedin the direction of the arrow 5 until the pawl II engages the tooth 6which opera- 0 tion inverts the receptacle A, bringing the hopper a ontop, thus permitting the sand to drop slowly within the hopper 0t andupon the plate B, which plate is so balanced that when the entirequantity of sand is contained 5 thereon the weight will tilt the lever Oand release the pawl,when the spring G will carry the rod E back to itsnormal position. Then the sand will be gradually discharged into thehopper a to place the device in condition we ready to repeat theoperation.

In order to control the sand as it is discharged from one hopper to theother, a swinging gate a is mounted within the hopper a. This gateswings open by gravity to allow the sand to freely and quickly emptyinto the hopper a, and said gate closes by gravity when the device is inposition to empty sand into the hopper a. The sand then dischargesslowly through the small Opening a in the gate (1 I do not confinemyself to the specific details of mere mechanical construction as hereinshown and described, as it is obvious that I am entitled to slightstructural variations.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l.- As a device for automatically opening a stove-dam per, thecombination with a pivoted receptacle embodying two hoppers emptyinginto each other, sand therein and a pinion thereon, and a balanced platewithin an extension of one of said compartments and a lever attached tosaid plate, with a sliding spring-actuated rod having a rack thereonengaging the said pinion, and a ratchet-andpawl mechanism for holdingthe rod against the action of its spring, and means connecting said rodwith a stove-damper, substan tially as shown and described.

2. As astove-damper regulator, the combination of the pivoted receptacleembodying the two hoppers, the pinion on said receptacle,sandwithin saidreceptacle,a plate in one of the said hoppers and the lever connectedwith said plate, with the sliding rod, the rack thereon for turning thesaid receptacle, the tooth on said rod and the pawl for engagementtherewith and the depending arm of said pawl, and the spring foroperating the said rod, substantially as shown and described.

3. As a device for automatically opening a stove-damper, the combinationwith a pivoted receptacle embodying two hoppers emptying into eachother, sand therein and .a pinion thereon, and a balanced plate withinan extension of one of said compartments and a lever attached to saidplate, and a swinging gate within one of said hoppers; with a slidingspring-actuated rod havinga rack thereon engaging the said pinion, and aratchetand-pawl mechanism for holding the rod against the action of itsspring, and means connecting said rod with a stove-damper, substantiallyas shown and described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 9th day of November, 1900.

RICHARD A. PENROSE.

lVitnesses:

JOHN MANSFEILD, JOHN PENROSE, Jr.

